Situated in Thamesmead in London, Woolwich Polytechnic School is one of the largest boys’ secondary schools in the country. Having moved to the site in the late 1990’s, the school has since undergone several extensive renovations with the additions of three separate buildings, the Humanities block, the English and Art block and a dedicated Sixth Form block. However, being the oldest part of the school, the main building of Woolwich Polytechnic School was now ageing, therefore the school decided to request a roof survey on its degrading roof which included examining all aspects of the roof to find problematic areas in order to propose the right waterproofing solution to meet the needs of the building, free of charge.